King penguin chicks experience their first molt around 10 months old and the process can last up to six weeks, per the aquarium. Since molting requires baby chicks to use a lot of energy ...

Meet Pesto the king penguin. At just nine months old and ... Pesto has started losing some of his baby feathers, and swimming ...

Getty Two king penguins photographed in St. Andrew's Bay, Georgia. Related: Pesto the Baby Penguin Goes Viral as 9-Month-Old Eats 25 Fish a Day Never miss a story — sign up for PEOPLE's free ...

Pesto the penguin, who lives at the Sea Life Aquarium in Melbourne, Australia, became a viral sensation for his ginormous size as a baby. The king penguin is now losing his baby feathers ...

With the average king penguin weighing between 21 and 40 pounds, according to the (ASOC), Pesto is clearly on the higher end ...

When Pesto poked out of his shell in January, he weighed just 7 ounces but eventually reached 53 pounds, making him the largest penguin at Sea Life Melbourne Aquarium. The average king penguin weighs ...